The CDRD is an Oracle (relational) database containing a wide range of aspatial data which are associated with the boundary spatial data. The CDRD 2006 relates to the 2006 Census but data are also available for the 1996 and 2001 Censuses. The information held in the CDRD includes:

the CD number and type;

the codes indicating the Collection Management Areas and the ASGC and Census Geographic Areas to which the CD belongs;